From Tintin weeping to spotlit buildings, images are rapidly circulating on social media as a way of comprehending the Brussels bombings. But where was the cartoon for those who died in Ankara? Are some tragedies "ungrievable"?

The world can only expect more attacks such that that took place in Brussels, as Islamic State continues to decline and lash out.
EPA/Christophe Petit TessonMarch 23, 2016

What goes on in the mind of a suicide bomber? What motivates someone to spend their last day on the planet blowing up complete strangers? Bad enough, perhaps, if the strangers in question are soldiers…